NSX SFTP Backup stops working after upgrade to NSX 6.3.*

I am in a process of upgrading NSX 6.2.4 by a customer in three locations deployed using VVD Deployment Toolkit. The NSX Upgrade itself went really smoothly. However, after the upgrade, we noticed that SFTP backup stopped working with an enigmatic error.

I am innovative and experienced IT professional with over 12 years in the IT industry.

My experience and skills have been proven by leading vendor certifications like AWS, Alibaba Cloud, VMware, and Microsoft. I contribute to IT community and I received VMware vExpert 2014 - 2017 and VMware vExpert NSX 2017 Award.